CITY REPORT IL

Wilmington, IL: 16 Violations - Home Safety 77/100

1 ZIP code · 2 water systems · Updated

ZipCheckup grade for Wilmington: B.

This ZIP looks solid, with a few items worth a quick check.

Wilmington's tap water quality puts it in IL's upper tier - health-based violations are rare and the compliance record is consistently above average.

How Wilmington Compares

Wilmington77/100
Illinois avg68/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
1
ZIPs with Violations
B · 77
Avg Safety Score
Zone 2
Radon Risk (Moderate)
$225K
Median Home Value
$2,900
Est. Remediation (1.3% of home value)

Key Facts for Wilmington Residents

  • Your city's water systems recorded 16 violations in the past 5 years.
  • Average lead level: 0.005 mg/L.
  • Homes built before 1986: 59% - older plumbing may contain lead solder.
  • Estimated remediation: $2,900 per household.
  • CDC health risk index: 11.84.

Wilmington's Water Providers

Structurally, Wilmington, IL's water supply is divided. Federal data identifies 2 water systems in the area, with 2 providers serving the bulk of residential connections. These utilities operate independently, meaning rate-setting authority and EPA compliance accountability are distributed rather than centralized.

  • Braidwood
    Serves ~6,194 people 4 violations
    B
  • Wilmington
    Serves ~5,700 people 12 violations
    B

Overview

We track home safety data for 1 ZIP code in Wilmington, Illinois, covering 2 community water systems serving approximately 11,277 people. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Wilmington: B (77/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

Wilmington water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0050 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 2 (Moderate Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Stage 2 DBP Rule Treatment Technique 4 1
Surface Water Treatment Rule Treatment Technique 4 1
Lead and Copper Rule Treatment Technique 4 1
Fecal Coliform Microbiological 4 1
Contaminant 1006 Other 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
60481 B 16 0 Wilmington

All ZIP Codes in Wilmington

  • 60481 [B] - 16 violations

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Wilmington Community Health Snapshot

9.7%
Asthma (US: 9.8%)
10.7%
Diabetes (US: 10.4%)
15.7%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 9.7% ↓
Diabetes 10.7% ↑
Mental Health 15.7% ↑

Vertical line = national average. Above national · Below national

What's in Wilmington's Water?

Stage 2 DBP Rule 4 violations
Treatment Technique
Disinfection byproduct exposure risk
Surface Water Treatment Rule 4 violations
Treatment Technique
Pathogens may not be adequately removed
Lead and Copper Rule 4 violations
Treatment Technique
Developmental delays in children, kidney damage

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Wilmington Infrastructure Age

1972
Median Build Year
59%
Built Before 1986
25%
Built Before 1970
Copper
Likely Pipe Material

With 59% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Because the majority of Wilmington's housing predates 1986, when lead solder was banned from new plumbing, the median build year of 1972 reflects a city where lead-era plumbing materials are common rather than exceptional.

1972
Median Year Built
59%
Pre-1986 (Lead Paint Risk)
25%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (25%) 1970–1986 (34%) Post-1986 (41%)

Over half of homes in Wilmington were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

How Remediation Costs Compare in Wilmington

The cost-to-value ratio in Wilmington is in the moderate range - neither dismissible nor alarming, but above the threshold where remediation can be treated as incidental. Most homeowners here are weighing a real equity commitment, and the moderate classification reflects that accurately.

Median Home Value
$224,800
Est. Remediation
$2,900
Remediation as % of home value 1.3%

Remediation costs are moderate relative to home values in Wilmington. The estimated $1,900–$4,100 range is manageable for most homeowners but still worth budgeting for. Home values are 22% above the Illinois average.

Wilmington: Lead Risk & Vulnerable Populations

59%
Homes Built Before 1986
0.005
mg/L Avg Lead (Limit: 0.015)

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Routinely in Wilmington, where 59% of housing predates the solder ban and aggregate utility readings hover near the federal threshold, a faucet-level draw functions as a standard household step for families with small kids.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Wilmington: NFIP Claim Records and Water-Quality Context

408
Total FEMA Flood Claims
$11,005
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Wilmington contains 408 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $11,005. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$2,900</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

Frequently Asked Questions

What does the Home Safety Score mean for Wilmington, IL?
Wilmington has an average Home Safety Score of 77/100 (Grade B) under model 4.0.0. The score combines EPA SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the PFAS MCL screen, EPA radon zone, and annual EPA AQI, and is published only when all required domains are observed. 16 EPA violations have been recorded. Check individual ZIP code reports for component details.
How many water violations does Wilmington have?
Wilmington water systems have a total of 16 EPA violations. Violations are tracked across 1 ZIP code.
Does Wilmington water have lead?
The average 90th-percentile lead level in Wilmington is 0.005 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How does Wilmington compare to Illinois average?
Wilmington has an average Home Safety Score of 77/100, which is above the Illinois state average of 68/100 for the same model series.
How many water systems serve Wilmington?
Wilmington is served by 2 public water systems across 1 ZIP code, serving approximately 11,277 people.
How much does it cost to fix water issues in Wilmington?
Estimated remediation costs in Wilmington average $2,900 per household, ranging from $1,900 to $4,100. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesIllinois → Wilmington, IL

How to cite this page

APA ZipCheckup. (2026). Wilmington, IL: 16 Violations - Home Safety 77/100. https://zipcheckup.com/cities/il/wilmington/
BibTeX
@misc{zipcheckup-cities-il-wilmington,
  author = {{ZipCheckup}},
  title  = {{Wilmington, IL: 16 Violations - Home Safety 77/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/il/wilmington/}
}

Page version: August 2026.

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